{"id":"CVE-2020-20211","title":"Mikrotik RouterOs 6.44.5 (long-term tree) suffers from an assertion failure vulnerability in the /nova/bin/console process","summary":"Mikrotik RouterOs 6.44.5 (long-term tree) suffers from an assertion failure vulnerability in the /nova/bin/console process. An authenticated remote attacker can cause a Denial of Service due to an assertion failure via a crafted packet.","severity":"medium","cvss":6.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-617"],"vendor":"mikrotik","product":"routeros","affected":["routeros = 6.44.5"],"published":"2021-07-07","updated":"2026-09-16","sourceUpdated":"2026-09-16T21:17:05.603","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2020-20211","references":[{"url":"http://seclists.org/fulldisclosure/2021/May/0","label":"cve@mitre.org"},{"url":"https://mikrotik.com/","label":"cve@mitre.org"},{"url":"https://seclists.org/fulldisclosure/2020/Apr/7","label":"cve@mitre.org"},{"url":"https://seclists.org/fulldisclosure/2020/Jan/12","label":"cve@mitre.org"},{"url":"http://seclists.org/fulldisclosure/2021/May/0","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://mikrotik.com/","label":"af854a3a-2127-422b-91ae-364da2661108"}],"tags":["nvd","cve.org"],"epss":0.02533,"epssPercentile":0.84133,"ingestedAt":"2026-09-16T21:05:36.903Z","slug":"CVE-2020-20211","body":"## Overview\n\nMikrotik RouterOs 6.44.5 (long-term tree) suffers from an assertion failure vulnerability in the /nova/bin/console process. An authenticated remote attacker can cause a Denial of Service due to an assertion failure via a crafted packet.\n\n## Affected\n\n- `routeros = 6.44.5`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":36,"depthScoreParts":{"impact":35.8,"likelihood":0.5,"exploitation":0,"ransomware":0},"changes":[{"seq":205793,"id":"CVE-2020-20211","ts":1789596445372,"field":"cvss","old":null,"new":"6.5"},{"seq":205792,"id":"CVE-2020-20211","ts":1789596445372,"field":"severity","old":"none","new":"medium"}]}